<template>
  <div className="my-tab-bar">
    <div class="tab-item" v-for="(obj,index) in arr" :key="index" @click="btn(index)"
        :class="{current:selected==index}" >
<!--      :class="selected==index?'current':''"-->
      <!-- 图标 -->
      <span class="iconfont" :class="obj.iconText"></span>
      <!-- 文字 -->
      <span>{{obj.text}}</span>
    </div>
  </div>
</template>

<script>
export default {
  props:{
    arr:{
      type:Array,
      required:true,
      validator(value) {

        if (value.length>=2&&value.length<=5){
          return true
        } else{
          console.log("数字源的长度必须是2-5之间")
          return false
        }
      }
    }
  },
  methods:{
    btn(index){
      this.selected=index

      this.$emit("ss",index)
    }
  },
  data(){
    return{
      selected:0
    }
  }

}
</script>

<style lang="less" scoped>
.my-tab-bar {
  position: fixed;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 50px;
  border-top: 1px solid #ccc;
  display: flex;
  justify-content: space-around;
  align-items: center;
  background-color: white;

  .tab-item {
    display: flex;
    flex-direction: column;
    align-items: center;
  }
}

.current {
  color: #1d7bff;
}
</style>